Home / 3,380.90-4,655.76-2,883.36

Finding the Fourth Proportional to 3,380.90, 4,655.76 and 2,883.36

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Solution

The fourth proportional to 3,380.90, 4,655.76 and 2,883.36 is: 3,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.90 : 4,655.76 = 2,883.36 : x
  2. Step 2: Convert to fraction form
    3,380.90/4,655.76 = 2,883.36/x
  3. Step 3: Cross multiply
    3,380.90x = 4,655.76 × 2,883.36
  4. Step 4: Simplify right side
    3,380.90x = 13,424,232.15
  5. Step 5: Solve for x
    x = 13,424,232.15/3,380.90
  6. Step 6: Final answer
    x = 3,970.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.